﻿// Copyright (c) 2025 BobLd
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

using System;
using System.Threading.Tasks;

namespace Caly.Core.ViewModels
{
    public partial class PdfDocumentViewModel : IAsyncDisposable, IDisposable
    {
        public async ValueTask DisposeAsync()
        {
            Debug.ThrowOnUiThread();

            await Parallel.ForEachAsync(Pages, (p, _) => p.DisposeAsync());

            Pages.Clear();
            Bookmarks?.Clear();

            _cts.Dispose();

            _searchResultsDisposable.Dispose();

            if (_processPagesInfoQueueTask is not null)
            {
                await _processPagesInfoQueueTask;
            }
        }

        public async void Dispose()
        {
            await DisposeAsync();
        }
    }
}
